CVE-2021-36204

Name: CVE-2021-36204
Creator: NVD / NIST
Published: 2023-01-13T21:15:15.36+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2021-36204 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Under some circumstances an Insufficiently Protected Credentials vulnerability in Johnson Controls Metasys ADS/ADX/OAS 10 versions prior to 10.1.6 and 11 versions prior to 11.0.3 allows API calls to expose credentials in plain text.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

Under some circumstances an Insufficiently Protected Credentials vulnerability in Johnson Controls Metasys ADS/ADX/OAS 10 versions prior to 10.1.6 and 11 versions prior to 11.0.3 allows API calls to expose credentials in plain text.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.42%

33.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Johnsoncontrols	Metasys Application And Data Server	>= 10.0, < 10.1.6
Johnsoncontrols	Metasys Application And Data Server	>= 11.0, < 11.0.3
Johnsoncontrols	Metasys Extended Application And Data Server	>= 10.0, < 10.1.6
Johnsoncontrols	Metasys Extended Application And Data Server	>= 11.0, < 11.0.3
Johnsoncontrols	Metasys Open Application Server	>= 10.0, < 10.1.6
Johnsoncontrols	Metasys Open Application Server	>= 11.0, < 11.0.3

References

https://www.cisa.gov/uscert/ics/advisories/icsa-23-012-06Third Party Advisory, US Government Resource
https://www.johnsoncontrols.com/cyber-solutions/security-advisoriesVendor Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-23-012-06Third Party Advisory, US Government Resource
https://www.johnsoncontrols.com/cyber-solutions/security-advisoriesVendor Advisory

Timeline

Published: Jan 13, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-36204?

How severe is CVE-2021-36204?

CVE-2021-36204 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2021-36204?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-36204?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST